A theoretical study of electronic excited states of photosynthetic reaction center in Rhodopseudomonas viridis  

作　　者：REN Yanliang CHENG Lin WAN Jian LI Yongjian LIU Junjun YANG Guangfu ZHANG Lihua YANG Song 

机构地区：[1]Key Laboratory of Pesticide&Chemical Biology CCNU,Ministry of Education and Department of Chemistry,Central China Normal University,Wuhan 430079,China

出　　处：《Science China Chemistry》2006年第1期88-96,共9页中国科学(化学英文版)

基　　金：This work was supported by the National Natural Science Foundation of China(Grant Nos.20203009 and 20432010);Hubei Province Science Foundations(Nos.2004ABC002 and 2005ABB012(a Grant for Young Distinguished Scholar));a Grant from the Ministry of Science and Technology of China(No.2004CCA00100);the China Scholarship Council.

摘　　要：The electronic singlet vertical excited states of photosynthetic reaction center(PSRC)in Rhodopseudomonas(Rps.)viridis were investigated by ZINDO and INDO/S methods.The effects of the interactions of pigment-pigment and pigment-protein on the electronic excitations were examined.The calculation results showed that the interactions of pigment-pigment and pigment-protein play an important role in reasonably assigning the experimental absorption and circular dichroism(CD)spec-tra of PSRC in Rps.virids.By comparing the theoretically computed excited states with the experi-mental absorption and CD spectra,satisfactory assignments of the experimental spectroscopic peaks were achieved.

关 键 词：Rhodopseudomonas viridis ZINDO INDO/S circular dichroism spectrum 

分 类 号：N[自然科学总论]